/kick command

[baptiste0928]

Implement the /kick command. This command is the first important moderation command implemented because it is probably the simplest.

Command usage

• Moderator uses the /kick <user> <optional reason> to kick the user from the guild in which the command is executed.
• The bot checks if the user is a guild member, ensure the moderator has required permissions and the bot can kick the user.
• If no reason has been provided, a modal component prompt the moderator for a reason. If enforce_reason is enabled in guild configuration, the field is required to continue.
• The bot attempts to send a private message to the kicked user with the reason of the kick.
• A message is sent in the guild logs channel and the sanction is stored in guild moderation logs.
• The moderator is informed of the command success with a message.

[baptiste0928]

See #113